A and B) the descending colon showing the inflammatory changes, edema of the mucosa, patchy erythema, pseudopolypoid formations, and vascular pattern loss. C) Lesion with a polypoid aspect in the sigmoid colon with loss of mucosal continuity, edema, and vasculature alteration. D) Photomicrography shows abundant eosinophils in the lamina propria, up to 70 per field at a high magnification.